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| MN3300 Series MN3307 1024-Stage Ultra Low Voltage Operation BBD for Audio Signals s Overview The MN3307 is a 1024-stage ultra low voltage operation BBD variable delay line in audio frequency range. The device operates on +3 V supply and provides a signal delay up to 51.2 ms and is suitable for use as reverberation effect of low voltage operation audio equipment such as portable stereo, radio cassette recorder and microphone. GND 1 2 MN3307 IN VDD 3 4 6 5 CP1 VD1 8 7 VD2 OUT s Pin Assignment s Features * Variable signal delay of the audio signal : 1.024 to 51.2 ms * Wide range of supply voltage : 1.8 to 5.0 V * No insertion loss : Li=0 dB typ. * Wide dynamic range : S/N=69 dB typ. * Low distortion : THD=0.6 % typ. (Vi=0.22 Vrms) * Clock frequency range : 10 to 200 kHz (1.8 VVDD<4.0 V) 10 to 500 kHz (4.0 VVDD5.0 V) * N-channel 2-layer silicon gate process * 8-Pin Dual-In-Line Plastic Package CP2 DIP008-P-0300 CP1 6 * Reverberation and echo effects of audio equipment such as radio cassette recorder, car radio, portable radio, portable stereo, echo microphone and Karaoke machine, etc. * Sound effect of electronic musical instruments * Variable or fixed delay of analog signals 2 CP2 s Applications s Block Diagram 8 7 5 VD2 OUT VD1 IN 3 1024-Stage BBD 4 s Pin Descriptions Pin No. Symbol 1 2 3 4 GND CP2 IN VDD Pin Name Ground pin Clock input 2 Signal input pin VDD apply pin Connected to ground. Basic clock pulse is applied to transfer electric charge of BBD. Analog signal to be delayed is input. Most suitable DC bias should be applied to this pin. Bias is applied to the gate of MOS transistor which is inserted in series with clock pulse input gate of the BBD transfer gate. Furthermore, voltage is supplied to step-up circuit. The same phase clock pulse as CP1 is applied through capacitor. Clock pulse of inverted phase to CP2 is applied. Composed signal of 1024th and 1025th stages is output. The same phase clock pulse as CP2 is applied through capacitor. Description 5 6 7 8 VD1 CP1 OUT VD2 VD1 apply pin Clock input 1 Output pin VD2 apply pin GND VDD 1 1 MN3307 s Absolute Maximum Ratings Ta=25C Parameter Pin voltage Output voltage Operating ambient temperature Storage temperature Symbol VDD, VD1, VD2, VCP, VI VO Topr Tstg Ratings - 0.3 to +6.0 - 0.3 to +6.0 -20 to +60 -55 to +125 MN3300 Series Unit V V C C s Operating Conditions Ta=25C Parameter Supply voltage Clock voltage "H"level Clock voltage "L"level Clock input capacitance Clock frequency Clock pulse width Clock rise time Clock fall time Clock cross point Note) *1 : ( ) : VDD=4.0 to 5.0 V *2 : T=1/fCP (Clock period) Symbol VDD VCPH VCPL CCP fCP tw(CP)*3 tr(CP)*3 tf(CP) *3 Conditions min +1.8 typ +3.0 VDD 0 max +5.0 Unit V V V 700 10 200(500)*1 0.5T*2 500 500 0 *3 : Clock pulse waveforms CP2 tr(CP) 90% 50% 10% tw(CP) T pF kHz ns ns V 3V V X* 3 0.3VCPH tf(CP) CP1 VX s Electrical Characteristics VDD=VCPH=3V, VCPL=0V, RL=56k, LPF : fC=20kHz, Att=48dB/oct., Ta=25C Parameter Supply current Signal delay time 1 Signal delay time 2 Input signal frequency Input signal amplitude Insertion loss Total harmonic distortion Output noise voltage Signal to noise ratio Note) * : N=BBD stages Symbol IDD tD1 tD2 fi i Li THD Vno S/N fCP=40 kHz VDD=1.8 to 4.0 V, fCP=10 to 200 kHz VDD=4.0 to 5.0 V, fCP=10 to 500 kHz fCP=40 kHz, Vi=0.22 Vrms Output attenuation3 dB(0 dB at fi=1 kHz) fCP=40 kHz, fi=1 kHz, THD=2.5 % fCP=40 kHz, fi=1 kHz, Vi=0.22 Vrms fCP=40 kHz, fi=1 kHz, Vi=0.22 Vrms fCP=100 kHz, Weighted by "A"curve 11 0.31 -4 0.45 0 0.6 0.15 69 4 2.5 0.25 Conditions min typ 0.05 N* 2*fCP kHz Vrms dB % mVrms dB max Unit mA ms s Circuit Diagram 8 VD2 IN 3 GND 1 VDD 4 CP1 6 CP2 2 5 VD1 1 2 3 1024 1025 7 OUT 2 MN3300 Series s Test Circuit GND 47F 10kB 100k Signal Generator 1F C2 1F 1 2 3 4 CP2 MN3307 8 7 6 5 CP1 Clock Pulse fCP=40 kHz Duty=50 % C1 1F 1F MN3307 ( Low Pass Filter fC=20 kHz Att=48dB/oct. ) Output VDD VCPH ( ) s Typical Characteristics VO VI 6 VDD=3V fCP=40kHz Ta=25C 20 Vo Vi THD (%) VDD=3V fCP=40kHz fi=1kHz Ta=25C THD Vi 6 VDD=3V fCP=40kHz fi=1kHz Ta=25C 4 Output signal level Vo (dBm) 5 10 5 VO (V) 0 4 3 -10 Total harmonic distortion DC output voltage 3 2 -20 -30 -40 -40 2 1 1 0 0 1 2 3 4 -30 -20 -10 0 10 0 -20 -15 -10 -5 0 5 DC input voltage VI (V) Input signal level Vi (dBm) Input signal level Vi (dBm) -100 Vno fCP VDD=3V Ta=25C 4 Gi fi VDD=3V Ta=25C 5 Gi Vi Vno (dBm) -90 2 fCP=100kHz 0 0 -80 Insertion gain Gi (dB) Gi (dB) -5 Output noise voltage Insertion gain -70 -2 -10 -60 -50 -40 20 -4 10kHz 40kHz 10 30 100 -15 40 60 80 100 120 140 160 180 -6 0.1 0.3 1 3 -20 -20 -15 -10 -5 VDD=3V fi=1kHz fCP=40kHz Ta=25C 0 5 10 Clock frequency fCP (kHz) Input frequency fi (kHz) Input signal level Vi (dBm) 3 MN3307 s Typical Characteristics (To be continued) Gi fCP 5 4 3 MN3300 Series THD VBias Total harmonic distortion THD (%) VDD=3V fi=1kHz Ta=25C 6 VDD=3V fi=1kHz fCP=40kHz Vi=0.22Vrms Ta=25C Gi Ta 3 2 VDD=3V fi=1kHz fCP=40kHz 5 Insertion gain Gi (dB) 2 1 0 -1 -2 -3 -4 -5 1 3 10 30 100 300 1000 4 Gi (dB) Insertion gain 1.2 1.4 1.6 1.8 2.0 2.2 1 0 -1 -2 -3 -4 -5 -20 3 2 1 0 1.0 0 20 40 60 80 Clock frequency fCP (kHz) Input bias voltage VBias (V) Ambient temperature Ta (C) -2 Vi(max) Ta VDD=3V fCP=40kHz fi=1kHz THD=2.5% 40 fi Ta 1.0 THD Ta Total harmonic distortion THD (%) VDD=3V fi=1kHz fCP=40kHz Vi=0.22Vrms Vi(max) (dBm) -3 VDD=3V fCP=40kHz Vo(fi)=Vo(1kHz)-3dB fi (kHz) 30 0.8 -4 Input frequency Input signal level 20 0.6 -5 -6 10 0.4 -7 -40 -20 0 20 40 60 80 100 120 0 -40 -20 0 20 40 60 80 100 120 0.2 -40 -20 0 20 40 60 80 100 120 Ambient temperature Ta (C) Ambient temperature Ta (C) Ambient temperature Ta (C) s Supply Voltage Characteristics VBias VDD 6 Ta=25C 4 THD VDD 20 fCP=40kHz fi=1kHz Vi=Vi(max)-6dB Ta=25C 3 fi VDD fCP=40kHz Vo(fi)=Vo(1Hz)-3dB Ta=25C THD (%) 5 18 VBias (V) fi (kHz) Input frequency 4 16 Total harmonic distortion Input bias voltage 3 2 14 2 12 1 1 10 0 0 2 4 6 8 0 8 0 2 4 6 8 0 2 4 6 8 Supply voltage VDD (V) Supply voltage VDD (V) Supply voltage VDD (V) 4 MN3300 Series s Supply Voltage Characteristics(To be continued) Vi(max) VDD 20 fCP=40kHz fi=1kHz THD=2.5% Ta=25C 4 3 2 1 0 -1 -2 -3 -20 -4 fCP=40kHz fi=1kHz Vi=Vi(max)-6dB Ta=25C MN3307 Gi VDD 110 S/N VDD Ta=25C Vi(max) (dBm) Gi (dB) 10 Signal to noise ratio S/N (dB) 100 90 Input signal level 0 Insertion gain 80 70 -10 60 0 2 4 6 8 0 2 4 6 8 50 0 2 4 6 8 Supply voltage VDD (V) Supply voltage VDD (V) Supply voltage VDD (V) s Package Dimensions (Unit : mm) * DIP008-P-0300 9.60.4 8 5 1 4 3.30.2 6.40.2 2.54 0.50.1 1.30.1 0 to 15 3.450.30 4.8max. 0.7min. 7.620.20 0.25 -0 +0.20 .05 SEATING PLANE 5 |
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